NMR assignments and characterization of the DNA-binding domain of Arabidopsis transcription factor WRKY11

被引:4
|
作者
Wang, Jiannan [1 ,2 ]
Lin, Yaling [1 ,2 ]
Zhu, Qinjun [1 ]
Zhang, Jingfeng [1 ]
Liu, Maili [1 ,2 ]
Hu, Yunfei [1 ,2 ]
机构
[1] Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol,Wuh, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Natl Lab Optoelect,Key Lab Magnet Resonance, Wuhan 430071, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
Transcription factor; WRKY; DNA -Binding domain; W; -box; Nuclear magnetic resonance (NMR); Protein -DNA interaction; PROTEIN SECONDARY STRUCTURE; RESISTANCE; REGULATORS; DYNAMICS;
D O I
10.1016/j.mrl.2021.09.001
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The WRKY proteins are a family of plant -specific transcription factors (TFs) that are widely involved in plant development and anti -stress responses. Arabidopsis WRKY11 (AtWRKY11) functions in regulating plant defense against abiotic stress and belongs to the IId subgroup of WRKY TFs. We herein report the expression, purification and preliminary structural characterization of AtWRKY11 DNA -binding domain (DBD) using solution NMR. Almost complete backbone chemical shift assignments of AtWRKY11-DBD have been obtained. Chemical shift -based secondary structure analysis suggests that AtWRKY11-DBD may exhibit local conformational differences from the X-ray structure of the C -terminal WRKY domain of AtWRKY1, particularly in the beta 1 and beta 5 strands. Our current study provides the basis for further structural and interactional studies. (c) 2021 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY -NC -ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
引用
收藏
页码:112 / 120
页数:9
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